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Universal Automatic / Digital Voltage Regulator

The SP Powerworld ADVR-12 12 Amp Universal Automatic / Digital Voltage Regulator is a Compatible Replacement for the Caterpillar 3516 - VR6 - VR3 - CDVR - K125-10B - K65-12B. Marelli M40FA640A/A. Basler DECS-100 - AVC63-12A - Digital DM110 - KR4FF. Marathon DVR2000 - DVR2000E - PM100 - PM200 - PM300.

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Tel: +44 (0)115 923 2568 (United Kingdom)

Tel: (24-hour) +44 (0)7484709956 (United Kingdom)




  • Single phase sensing & single phase and three phase power input
  • Voltage regulation < ±0.5%
  • 220/380/440/480VAC programmable input
  • DIP switch selectable 50/60Hz
  • Multiple excitation system compatibility: SHUNT, AUX, PMG
  • Inverse-time over excitation protection
  • Under frequency protection
  • Soft start voltage ramping
  • EMI suppression
  • Built-in high capacity protection fuse



Sensing Input Voltage 180~520VAC single phase DIP switch selectable
Frequency 50/60Hz jumper selectable
Power Input Voltage 100~300 VAC single phase or three phase
Output Voltage Max. 125VDC @ 220VAC
Current Continuous 12A, Intermittent 25A for 10 Sec.
Volts Regulation < ±0.5% (with 4% engine governing)
Voltage Build-up Residual volts at AVR terminal > 6VAC
Over Excitation Protection Inverse-time 125±5VDC @ 220VAC
External Volts Adjustment 10 K Ohm 1 watt trimmer
Unit Power Dissipation Max. 8 watt
Soft Start Ramp Time 4 Sec.
EMI Suppression Internal electromagnetic interference filtering
Thermal Drift 0.03% per °C change in AVR ambient
Under Frequency Protection
(Factory Setting)
60Hz system presets knee point at 55Hz
50Hz system presets knee point at 45Hz
Environment Operating Temperature : -40~70 °C
Storage Temperature : -40~85 °C
Relative Humidity : Maximum 95%
Vibration : 3G @ 100~2KHz
AVR Controls Function VOLT : Voltage Adjustment
STAB : Stability Adjustment
U/F: To Set the U/F Knee Point (*U/F: Under Frequency Protection)
DROOP : Droop Adjustment
TRIM : Analogue Input Adjustment
DIP : U/V Rate Set
O/E LED : O/E Protection Indicator (*O/E : Over Excitation Protection)
U/F LED : U/F Protection Indicator
Dimensions 214.0 (L) x 163.0 (W) x 45.7 (H) mm
Weight 1130g ±2%